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this program describes the spatial domain technique for the watermarking and finds out different parameters

ffd算法 用于ffd的运行，即快速图像配准算法(ffd ffd running algorithm, that algorithm for fast image registration)

维特比译码，带有较为完整的说明，适合初学者使用(Viterbi decoding, with a more complete description for beginners)

matlab implementation of epsk

generation of FSK in simulink

Estimated number of Pi ( Method 1) how do we estimate Pi by simulation? In the simulation, you keep throwing darts at random onto the dartboard. All of the darts fall within the square, but not all of them fall within the circle. Here s the key. If you throw darts completely at random, this experiment estimate the ratio of the area of the circle to the area of the square, by counting the number of darts in each. Our study of the geometry tells us this ratio is Pi/4. So, now we can estimate Pi as

state space model of system sampling time

电力系统建模，非常适合于初学者及专业人士参考学习(Power system modeling, very suitable for beginners and professionals refer to learning)

龙格库塔算法的加速算法（matlab),拟二步四阶算法(the accelerating of runge-kutta method by matlab)

Active approach - TOA LS(Active approach- TOA LS)